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* coredep.c: Renamed to core-aout.c
[binutils.git] / gdb / partial-stab.h
CommitLineData
7e258d18 1/* Shared code to pre-read a stab (dbx-style), when building a psymtab.
436d4143 2 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
65ce5df4 3 Free Software Foundation, Inc.
7e258d18
PB
4
5This file is part of GDB.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2 of the License, or
10(at your option) any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with this program; if not, write to the Free Software
6c9638b4 19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
7e258d18
PB
20
21/* The following need to be defined:
22 SET_NAMESTRING() --Set namestring to name of symbol.
23 CUR_SYMBOL_TYPE --Type code of current symbol.
24 CUR_SYMBOL_VALUE --Value field of current symbol. May be adjusted here.
48b2d07e
JK
25 namestring - variable pointing to the name of the stab.
26 section_offsets - variable pointing to the section offsets.
27 pst - the partial symbol table being built.
28
29 psymtab_include_list, includes_used, includes_allocated - list of include
30 file names (N_SOL) seen so far.
31 dependency_list, dependencies_used, dependencies_allocated - list of
32 N_EXCL stabs seen so far.
33
34 END_PSYMTAB -- end a partial symbol table.
35 START_PSYMTAB -- start a partial symbol table.
7e258d18
PB
36 */
37
7e258d18
PB
38/* End of macro definitions, now let's handle them symbols! */
39
40 switch (CUR_SYMBOL_TYPE)
41 {
42 char *p;
43 /*
44 * Standard, external, non-debugger, symbols
45 */
46
7e258d18
PB
47 case N_TEXT | N_EXT:
48 case N_NBTEXT | N_EXT:
2670f34d
JG
49 CUR_SYMBOL_VALUE += ANOFFSET (section_offsets, SECT_OFF_TEXT);
50 goto record_it;
51
52 case N_DATA | N_EXT:
7e258d18 53 case N_NBDATA | N_EXT:
2670f34d
JG
54 CUR_SYMBOL_VALUE += ANOFFSET (section_offsets, SECT_OFF_DATA);
55 goto record_it;
56
164207ca 57 case N_BSS:
2670f34d 58 case N_BSS | N_EXT:
7e258d18 59 case N_NBBSS | N_EXT:
2670f34d
JG
60 case N_SETV | N_EXT: /* FIXME, is this in BSS? */
61 CUR_SYMBOL_VALUE += ANOFFSET (section_offsets, SECT_OFF_BSS);
62 goto record_it;
63
7e258d18 64 case N_ABS | N_EXT:
2670f34d 65 record_it:
aab77d5f 66#ifdef DBXREAD_ONLY
7e258d18
PB
67 SET_NAMESTRING();
68
69 bss_ext_symbol:
1ab3bf1b
JG
70 record_minimal_symbol (namestring, CUR_SYMBOL_VALUE,
71 CUR_SYMBOL_TYPE, objfile); /* Always */
aab77d5f 72#endif /* DBXREAD_ONLY */
7e258d18
PB
73 continue;
74
75 /* Standard, local, non-debugger, symbols */
76
77 case N_NBTEXT:
78
79 /* We need to be able to deal with both N_FN or N_TEXT,
80 because we have no way of knowing whether the sys-supplied ld
81 or GNU ld was used to make the executable. Sequents throw
82 in another wrinkle -- they renumbered N_FN. */
83
84 case N_FN:
85 case N_FN_SEQ:
86 case N_TEXT:
aab77d5f 87#ifdef DBXREAD_ONLY
2670f34d 88 CUR_SYMBOL_VALUE += ANOFFSET (section_offsets, SECT_OFF_TEXT);
7e258d18
PB
89 SET_NAMESTRING();
90 if ((namestring[0] == '-' && namestring[1] == 'l')
91 || (namestring [(nsl = strlen (namestring)) - 1] == 'o'
3306c363 92 && namestring [nsl - 2] == '.'))
7e258d18 93 {
5e2e79f8 94 if (objfile -> ei.entry_point < CUR_SYMBOL_VALUE &&
2670f34d 95 objfile -> ei.entry_point >= last_o_file_start)
7e258d18 96 {
5e2e79f8
FF
97 objfile -> ei.entry_file_lowpc = last_o_file_start;
98 objfile -> ei.entry_file_highpc = CUR_SYMBOL_VALUE;
7e258d18
PB
99 }
100 if (past_first_source_file && pst
101 /* The gould NP1 uses low values for .o and -l symbols
102 which are not the address. */
369172bb 103 && CUR_SYMBOL_VALUE >= pst->textlow)
7e258d18
PB
104 {
105 END_PSYMTAB (pst, psymtab_include_list, includes_used,
436d4143
JL
106 symnum * symbol_size,
107 CUR_SYMBOL_VALUE > pst->texthigh
108 ? CUR_SYMBOL_VALUE : pst->texthigh,
7e258d18
PB
109 dependency_list, dependencies_used);
110 pst = (struct partial_symtab *) 0;
111 includes_used = 0;
112 dependencies_used = 0;
113 }
114 else
115 past_first_source_file = 1;
116 last_o_file_start = CUR_SYMBOL_VALUE;
117 }
164207ca
JK
118 else
119 goto record_it;
aab77d5f 120#endif /* DBXREAD_ONLY */
7e258d18
PB
121 continue;
122
123 case N_DATA:
2670f34d 124 CUR_SYMBOL_VALUE += ANOFFSET (section_offsets, SECT_OFF_DATA);
164207ca 125 goto record_it;
7e258d18
PB
126
127 case N_UNDF | N_EXT:
aab77d5f 128#ifdef DBXREAD_ONLY
7e258d18
PB
129 if (CUR_SYMBOL_VALUE != 0) {
130 /* This is a "Fortran COMMON" symbol. See if the target
131 environment knows where it has been relocated to. */
132
133 CORE_ADDR reladdr;
134
135 SET_NAMESTRING();
136 if (target_lookup_symbol (namestring, &reladdr)) {
137 continue; /* Error in lookup; ignore symbol for now. */
138 }
139 CUR_SYMBOL_TYPE ^= (N_BSS^N_UNDF); /* Define it as a bss-symbol */
140 CUR_SYMBOL_VALUE = reladdr;
141 goto bss_ext_symbol;
142 }
aab77d5f 143#endif /* DBXREAD_ONLY */
7e258d18 144 continue; /* Just undefined, not COMMON */
7e258d18 145
9342ecb9
JG
146 case N_UNDF:
147#ifdef DBXREAD_ONLY
148 if (processing_acc_compilation && bufp->n_strx == 1) {
bcbf9559
JG
149 /* Deal with relative offsets in the string table
150 used in ELF+STAB under Solaris. If we want to use the
151 n_strx field, which contains the name of the file,
152 we must adjust file_string_table_offset *before* calling
153 SET_NAMESTRING(). */
9342ecb9
JG
154 past_first_source_file = 1;
155 file_string_table_offset = next_file_string_table_offset;
156 next_file_string_table_offset =
157 file_string_table_offset + bufp->n_value;
158 if (next_file_string_table_offset < file_string_table_offset)
159 error ("string table offset backs up at %d", symnum);
160 /* FIXME -- replace error() with complaint. */
161 continue;
162 }
163#endif /* DBXREAD_ONLY */
164 continue;
165
7e258d18
PB
166 /* Lots of symbol types we can just ignore. */
167
7e258d18 168 case N_ABS:
7e258d18
PB
169 case N_NBDATA:
170 case N_NBBSS:
171 continue;
172
173 /* Keep going . . .*/
174
175 /*
176 * Special symbol types for GNU
177 */
178 case N_INDR:
179 case N_INDR | N_EXT:
180 case N_SETA:
181 case N_SETA | N_EXT:
182 case N_SETT:
183 case N_SETT | N_EXT:
184 case N_SETD:
185 case N_SETD | N_EXT:
186 case N_SETB:
187 case N_SETB | N_EXT:
188 case N_SETV:
189 continue;
190
191 /*
192 * Debugger symbols
193 */
194
195 case N_SO: {
fc39be58 196 unsigned long valu;
cdaa27e9
SG
197 static int prev_so_symnum = -10;
198 static int first_so_symnum;
c72af089 199 char *p;
fc39be58
JK
200
201 valu = CUR_SYMBOL_VALUE + ANOFFSET (section_offsets, SECT_OFF_TEXT);
576c3913
PS
202#ifdef SOFUN_ADDRESS_MAYBE_MISSING
203 /* A zero value is probably an indication for the SunPRO 3.0
204 compiler. end_psymtab explicitly tests for zero, so
205 don't relocate it. */
206 if (CUR_SYMBOL_VALUE == 0)
207 valu = 0;
208#endif
fc39be58 209
cdaa27e9
SG
210 past_first_source_file = 1;
211
212 if (prev_so_symnum != symnum - 1)
213 { /* Here if prev stab wasn't N_SO */
214 first_so_symnum = symnum;
215
216 if (pst)
217 {
218 END_PSYMTAB (pst, psymtab_include_list, includes_used,
436d4143
JL
219 symnum * symbol_size,
220 valu > pst->texthigh ? valu : pst->texthigh,
cdaa27e9
SG
221 dependency_list, dependencies_used);
222 pst = (struct partial_symtab *) 0;
223 includes_used = 0;
224 dependencies_used = 0;
225 }
226 }
227
228 prev_so_symnum = symnum;
229
7e258d18
PB
230 /* End the current partial symtab and start a new one */
231
232 SET_NAMESTRING();
233
cad1498f
SG
234 /* Null name means end of .o file. Don't start a new one. */
235 if (*namestring == '\000')
236 continue;
237
c72af089
SG
238 /* Some compilers (including gcc) emit a pair of initial N_SOs.
239 The first one is a directory name; the second the file name.
240 If pst exists, is empty, and has a filename ending in '/',
241 we assume the previous N_SO was a directory name. */
242
323227fe 243 p = strrchr (namestring, '/');
c72af089 244 if (p && *(p+1) == '\000')
cdaa27e9 245 continue; /* Simply ignore directory name SOs */
c72af089
SG
246
247 /* Some other compilers (C++ ones in particular) emit useless
cdaa27e9
SG
248 SOs for non-existant .c files. We ignore all subsequent SOs that
249 immediately follow the first. */
250
251 if (!pst)
252 pst = START_PSYMTAB (objfile, section_offsets,
253 namestring, valu,
254 first_so_symnum * symbol_size,
255 objfile -> global_psymbols.next,
256 objfile -> static_psymbols.next);
7e258d18
PB
257 continue;
258 }
259
7e258d18 260 case N_BINCL:
91f87016 261 {
aab77d5f 262#ifdef DBXREAD_ONLY
91f87016
JL
263 enum language tmp_language;
264 /* Add this bincl to the bincl_list for future EXCLs. No
265 need to save the string; it'll be around until
266 read_dbx_symtab function returns */
7e258d18 267
91f87016
JL
268 SET_NAMESTRING();
269
270 tmp_language = deduce_language_from_filename (namestring);
271
272 /* Only change the psymtab's language if we've learned
273 something useful (eg. tmp_language is not language_unknown).
274 In addition, to match what start_subfile does, never change
275 from C++ to C. */
276 if (tmp_language != language_unknown
277 && (tmp_language != language_c
278 || psymtab_language != language_cplus))
279 psymtab_language = tmp_language;
7e258d18 280
91f87016 281 add_bincl_to_list (pst, namestring, CUR_SYMBOL_VALUE);
7e258d18 282
91f87016 283 /* Mark down an include file in the current psymtab */
7e258d18 284
91f87016 285 goto record_include_file;
7e258d18 286
8a1c3e99 287#else /* DBXREAD_ONLY */
91f87016 288 continue;
8a1c3e99 289#endif
91f87016 290 }
7e258d18
PB
291
292 case N_SOL:
7e258d18 293 {
91f87016
JL
294 enum language tmp_language;
295 /* Mark down an include file in the current psymtab */
296
297 SET_NAMESTRING();
298
299 tmp_language = deduce_language_from_filename (namestring);
300
301 /* Only change the psymtab's language if we've learned
302 something useful (eg. tmp_language is not language_unknown).
303 In addition, to match what start_subfile does, never change
304 from C++ to C. */
305 if (tmp_language != language_unknown
306 && (tmp_language != language_c
307 || psymtab_language != language_cplus))
308 psymtab_language = tmp_language;
309
310 /* In C++, one may expect the same filename to come round many
311 times, when code is coming alternately from the main file
312 and from inline functions in other files. So I check to see
313 if this is a file we've seen before -- either the main
314 source file, or a previously included file.
315
316 This seems to be a lot of time to be spending on N_SOL, but
317 things like "break c-exp.y:435" need to work (I
318 suppose the psymtab_include_list could be hashed or put
319 in a binary tree, if profiling shows this is a major hog). */
320 if (pst && STREQ (namestring, pst->filename))
7e258d18 321 continue;
7e258d18 322 {
91f87016
JL
323 register int i;
324 for (i = 0; i < includes_used; i++)
325 if (STREQ (namestring, psymtab_include_list[i]))
326 {
327 i = -1;
328 break;
329 }
330 if (i == -1)
331 continue;
7e258d18 332 }
91f87016
JL
333
334#ifdef DBXREAD_ONLY
335 record_include_file:
336#endif
337
338 psymtab_include_list[includes_used++] = namestring;
339 if (includes_used >= includes_allocated)
340 {
341 char **orig = psymtab_include_list;
342
343 psymtab_include_list = (char **)
344 alloca ((includes_allocated *= 2) *
345 sizeof (char *));
346 memcpy ((PTR)psymtab_include_list, (PTR)orig,
347 includes_used * sizeof (char *));
348 }
349 continue;
350 }
7e258d18
PB
351 case N_LSYM: /* Typedef or automatic variable. */
352 case N_STSYM: /* Data seg var -- static */
353 case N_LCSYM: /* BSS " */
2670f34d 354 case N_ROSYM: /* Read-only data seg var -- static. */
7e258d18
PB
355 case N_NBSTS: /* Gould nobase. */
356 case N_NBLCS: /* symbols. */
4ae030b9
JK
357 case N_FUN:
358 case N_GSYM: /* Global (extern) variable; can be
359 data or bss (sigh FIXME). */
360
361 /* Following may probably be ignored; I'll leave them here
362 for now (until I do Pascal and Modula 2 extensions). */
363
364 case N_PC: /* I may or may not need this; I
365 suspect not. */
366 case N_M2C: /* I suspect that I can ignore this here. */
367 case N_SCOPE: /* Same. */
7e258d18
PB
368
369 SET_NAMESTRING();
370
436d4143
JL
371#ifdef DBXREAD_ONLY
372 /* See if this is an end of function stab. */
373 if (CUR_SYMBOL_TYPE == N_FUN && ! strcmp (namestring, ""))
374 {
375 unsigned long valu;
376
377 /* It's value is the size (in bytes) of the function for
378 function relative stabs, or the address of the function's
379 end for old style stabs. */
380 valu = CUR_SYMBOL_VALUE + last_function_start;
381 if (pst->texthigh == 0 || valu > pst->texthigh)
382 pst->texthigh = valu;
383 break;
384 }
385#endif
386
7e258d18 387 p = (char *) strchr (namestring, ':');
4ae030b9
JK
388 if (!p)
389 continue; /* Not a debugging symbol. */
7e258d18 390
4ae030b9
JK
391
392
393 /* Main processing section for debugging symbols which
394 the initial read through the symbol tables needs to worry
395 about. If we reach this point, the symbol which we are
396 considering is definitely one we are interested in.
397 p must also contain the (valid) index into the namestring
398 which indicates the debugging type symbol. */
7e258d18
PB
399
400 switch (p[1])
401 {
4ae030b9
JK
402 case 'S':
403 CUR_SYMBOL_VALUE += ANOFFSET (section_offsets, SECT_OFF_DATA);
137a07e6
JK
404#ifdef STATIC_TRANSFORM_NAME
405 namestring = STATIC_TRANSFORM_NAME (namestring);
406#endif
4ae030b9
JK
407 ADD_PSYMBOL_ADDR_TO_LIST (namestring, p - namestring,
408 VAR_NAMESPACE, LOC_STATIC,
409 objfile->static_psymbols,
410 CUR_SYMBOL_VALUE,
411 psymtab_language, objfile);
412 continue;
413 case 'G':
414 CUR_SYMBOL_VALUE += ANOFFSET (section_offsets, SECT_OFF_DATA);
415 /* The addresses in these entries are reported to be
416 wrong. See the code that reads 'G's for symtabs. */
417 ADD_PSYMBOL_ADDR_TO_LIST (namestring, p - namestring,
418 VAR_NAMESPACE, LOC_STATIC,
419 objfile->global_psymbols,
420 CUR_SYMBOL_VALUE,
421 psymtab_language, objfile);
422 continue;
423
7e258d18 424 case 'T':
bcbf9559 425 if (p != namestring) /* a name is there, not just :T... */
7e258d18 426 {
7e258d18 427 ADD_PSYMBOL_TO_LIST (namestring, p - namestring,
bcbf9559 428 STRUCT_NAMESPACE, LOC_TYPEDEF,
2e4964ad
FF
429 objfile->static_psymbols,
430 CUR_SYMBOL_VALUE,
431 psymtab_language, objfile);
bcbf9559
JG
432 if (p[2] == 't')
433 {
434 /* Also a typedef with the same name. */
435 ADD_PSYMBOL_TO_LIST (namestring, p - namestring,
436 VAR_NAMESPACE, LOC_TYPEDEF,
2e4964ad
FF
437 objfile->static_psymbols,
438 CUR_SYMBOL_VALUE, psymtab_language,
439 objfile);
bcbf9559
JG
440 p += 1;
441 }
91f87016
JL
442 /* The semantics of C++ state that "struct foo { ... }"
443 also defines a typedef for "foo". Unfortuantely, cfront
444 never makes the typedef when translating from C++ to C.
445 We make the typedef here so that "ptype foo" works as
446 expected for cfront translated code. */
447 else if (psymtab_language == language_cplus)
448 {
449 /* Also a typedef with the same name. */
450 ADD_PSYMBOL_TO_LIST (namestring, p - namestring,
451 VAR_NAMESPACE, LOC_TYPEDEF,
452 objfile->static_psymbols,
453 CUR_SYMBOL_VALUE, psymtab_language,
454 objfile);
455 }
7e258d18
PB
456 }
457 goto check_enum;
458 case 't':
bcbf9559
JG
459 if (p != namestring) /* a name is there, not just :T... */
460 {
461 ADD_PSYMBOL_TO_LIST (namestring, p - namestring,
462 VAR_NAMESPACE, LOC_TYPEDEF,
2e4964ad
FF
463 objfile->static_psymbols,
464 CUR_SYMBOL_VALUE,
465 psymtab_language, objfile);
bcbf9559 466 }
7e258d18 467 check_enum:
7e258d18
PB
468 /* If this is an enumerated type, we need to
469 add all the enum constants to the partial symbol
470 table. This does not cover enums without names, e.g.
471 "enum {a, b} c;" in C, but fortunately those are
472 rare. There is no way for GDB to find those from the
473 enum type without spending too much time on it. Thus
4ae030b9
JK
474 to solve this problem, the compiler needs to put out the
475 enum in a nameless type. GCC2 does this. */
7e258d18
PB
476
477 /* We are looking for something of the form
478 <name> ":" ("t" | "T") [<number> "="] "e"
479 {<constant> ":" <value> ","} ";". */
480
481 /* Skip over the colon and the 't' or 'T'. */
482 p += 2;
483 /* This type may be given a number. Also, numbers can come
484 in pairs like (0,26). Skip over it. */
485 while ((*p >= '0' && *p <= '9')
486 || *p == '(' || *p == ',' || *p == ')'
487 || *p == '=')
488 p++;
489
490 if (*p++ == 'e')
491 {
65eaea27
JL
492 /* The aix4 compiler emits extra crud before the members. */
493 if (*p == '-')
494 {
495 /* Skip over the type (?). */
496 while (*p != ':')
497 p++;
498
499 /* Skip over the colon. */
500 p++;
501 }
502
7e258d18
PB
503 /* We have found an enumerated type. */
504 /* According to comments in read_enum_type
505 a comma could end it instead of a semicolon.
506 I don't know where that happens.
507 Accept either. */
508 while (*p && *p != ';' && *p != ',')
509 {
510 char *q;
511
512 /* Check for and handle cretinous dbx symbol name
513 continuation! */
91a0575c 514 if (*p == '\\' || (*p == '?' && p[1] == '\0'))
2dd30c72 515 p = next_symbol_text (objfile);
7e258d18
PB
516
517 /* Point to the character after the name
518 of the enum constant. */
519 for (q = p; *q && *q != ':'; q++)
520 ;
521 /* Note that the value doesn't matter for
522 enum constants in psymtabs, just in symtabs. */
523 ADD_PSYMBOL_TO_LIST (p, q - p,
524 VAR_NAMESPACE, LOC_CONST,
2e4964ad
FF
525 objfile->static_psymbols, 0,
526 psymtab_language, objfile);
7e258d18
PB
527 /* Point past the name. */
528 p = q;
529 /* Skip over the value. */
530 while (*p && *p != ',')
531 p++;
532 /* Advance past the comma. */
533 if (*p)
534 p++;
535 }
536 }
7e258d18
PB
537 continue;
538 case 'c':
539 /* Constant, e.g. from "const" in Pascal. */
540 ADD_PSYMBOL_TO_LIST (namestring, p - namestring,
541 VAR_NAMESPACE, LOC_CONST,
2e4964ad
FF
542 objfile->static_psymbols, CUR_SYMBOL_VALUE,
543 psymtab_language, objfile);
7e258d18 544 continue;
7e258d18
PB
545
546 case 'f':
2fe3b329 547 CUR_SYMBOL_VALUE += ANOFFSET (section_offsets, SECT_OFF_TEXT);
9342ecb9 548#ifdef DBXREAD_ONLY
436d4143
JL
549 /* Keep track of the start of the last function so we
550 can handle end of function symbols. */
551 last_function_start = CUR_SYMBOL_VALUE;
9342ecb9
JG
552 /* Kludges for ELF/STABS with Sun ACC */
553 last_function_name = namestring;
2d336b1b 554#ifdef SOFUN_ADDRESS_MAYBE_MISSING
a66e8382
SG
555 /* Do not fix textlow==0 for .o or NLM files, as 0 is a legit
556 value for the bottom of the text seg in those cases. */
557 if (pst && pst->textlow == 0 && !symfile_relocatable)
2d336b1b
JK
558 pst->textlow =
559 find_stab_function_addr (namestring, pst, objfile);
560#endif
9342ecb9
JG
561#if 0
562 if (startup_file_end == 0)
563 startup_file_end = CUR_SYMBOL_VALUE;
564#endif
565 /* End kludge. */
436d4143
JL
566
567 /* In reordered executables this function may lie outside
568 the bounds created by N_SO symbols. If that's the case
569 use the address of this function as the low bound for
570 the partial symbol table. */
571 if (pst->textlow == 0 || CUR_SYMBOL_VALUE < pst->textlow)
572 pst->textlow = CUR_SYMBOL_VALUE;
9342ecb9 573#endif /* DBXREAD_ONLY */
7e258d18
PB
574 ADD_PSYMBOL_TO_LIST (namestring, p - namestring,
575 VAR_NAMESPACE, LOC_BLOCK,
2e4964ad
FF
576 objfile->static_psymbols, CUR_SYMBOL_VALUE,
577 psymtab_language, objfile);
7e258d18
PB
578 continue;
579
580 /* Global functions were ignored here, but now they
581 are put into the global psymtab like one would expect.
65ce5df4 582 They're also in the minimal symbol table. */
7e258d18 583 case 'F':
2fe3b329 584 CUR_SYMBOL_VALUE += ANOFFSET (section_offsets, SECT_OFF_TEXT);
9342ecb9 585#ifdef DBXREAD_ONLY
436d4143
JL
586 /* Keep track of the start of the last function so we
587 can handle end of function symbols. */
588 last_function_start = CUR_SYMBOL_VALUE;
9342ecb9
JG
589 /* Kludges for ELF/STABS with Sun ACC */
590 last_function_name = namestring;
2d336b1b 591#ifdef SOFUN_ADDRESS_MAYBE_MISSING
a66e8382
SG
592 /* Do not fix textlow==0 for .o or NLM files, as 0 is a legit
593 value for the bottom of the text seg in those cases. */
594 if (pst && pst->textlow == 0 && !symfile_relocatable)
2d336b1b
JK
595 pst->textlow =
596 find_stab_function_addr (namestring, pst, objfile);
597#endif
9342ecb9
JG
598#if 0
599 if (startup_file_end == 0)
600 startup_file_end = CUR_SYMBOL_VALUE;
601#endif
602 /* End kludge. */
436d4143
JL
603 /* In reordered executables this function may lie outside
604 the bounds created by N_SO symbols. If that's the case
605 use the address of this function as the low bound for
606 the partial symbol table. */
607 if (pst->textlow == 0 || CUR_SYMBOL_VALUE < pst->textlow)
608 pst->textlow = CUR_SYMBOL_VALUE;
9342ecb9 609#endif /* DBXREAD_ONLY */
7e258d18
PB
610 ADD_PSYMBOL_TO_LIST (namestring, p - namestring,
611 VAR_NAMESPACE, LOC_BLOCK,
2e4964ad
FF
612 objfile->global_psymbols, CUR_SYMBOL_VALUE,
613 psymtab_language, objfile);
7e258d18
PB
614 continue;
615
616 /* Two things show up here (hopefully); static symbols of
617 local scope (static used inside braces) or extensions
618 of structure symbols. We can ignore both. */
619 case 'V':
620 case '(':
621 case '0':
622 case '1':
623 case '2':
624 case '3':
625 case '4':
626 case '5':
627 case '6':
628 case '7':
629 case '8':
630 case '9':
fb494327 631 case '-':
7e258d18
PB
632 continue;
633
9d271503
JK
634 case ':':
635 /* It is a C++ nested symbol. We don't need to record it
636 (I don't think); if we try to look up foo::bar::baz,
637 then symbols for the symtab containing foo should get
638 read in, I think. */
639 /* Someone says sun cc puts out symbols like
7e258d18
PB
640 /foo/baz/maclib::/usr/local/bin/maclib,
641 which would get here with a symbol type of ':'. */
9d271503
JK
642 continue;
643
644 default:
645 /* Unexpected symbol descriptor. The second and subsequent stabs
646 of a continued stab can show up here. The question is
647 whether they ever can mimic a normal stab--it would be
648 nice if not, since we certainly don't want to spend the
649 time searching to the end of every string looking for
650 a backslash. */
651
65ce5df4 652 complain (&unknown_symchar_complaint, p[1]);
9d271503
JK
653
654 /* Ignore it; perhaps it is an extension that we don't
655 know about. */
7e258d18
PB
656 continue;
657 }
658
7e258d18 659 case N_EXCL:
aab77d5f 660#ifdef DBXREAD_ONLY
7e258d18
PB
661
662 SET_NAMESTRING();
663
664 /* Find the corresponding bincl and mark that psymtab on the
665 psymtab dependency list */
666 {
667 struct partial_symtab *needed_pst =
668 find_corresponding_bincl_psymtab (namestring, CUR_SYMBOL_VALUE);
669
670 /* If this include file was defined earlier in this file,
671 leave it alone. */
672 if (needed_pst == pst) continue;
673
674 if (needed_pst)
675 {
676 int i;
677 int found = 0;
678
679 for (i = 0; i < dependencies_used; i++)
680 if (dependency_list[i] == needed_pst)
681 {
682 found = 1;
683 break;
684 }
685
686 /* If it's already in the list, skip the rest. */
687 if (found) continue;
688
689 dependency_list[dependencies_used++] = needed_pst;
690 if (dependencies_used >= dependencies_allocated)
691 {
692 struct partial_symtab **orig = dependency_list;
693 dependency_list =
694 (struct partial_symtab **)
695 alloca ((dependencies_allocated *= 2)
696 * sizeof (struct partial_symtab *));
be772100 697 memcpy ((PTR)dependency_list, (PTR)orig,
7e258d18
PB
698 (dependencies_used
699 * sizeof (struct partial_symtab *)));
700#ifdef DEBUG_INFO
199b2450
TL
701 fprintf_unfiltered (gdb_stderr, "Had to reallocate dependency list.\n");
702 fprintf_unfiltered (gdb_stderr, "New dependencies allocated: %d\n",
7e258d18
PB
703 dependencies_allocated);
704#endif
705 }
706 }
7e258d18 707 }
aab77d5f 708#endif /* DBXREAD_ONLY */
7e258d18 709 continue;
7e258d18
PB
710
711 case N_RBRAC:
712#ifdef HANDLE_RBRAC
713 HANDLE_RBRAC(CUR_SYMBOL_VALUE);
aab77d5f 714 continue;
7e258d18
PB
715#endif
716 case N_EINCL:
717 case N_DSLINE:
718 case N_BSLINE:
719 case N_SSYM: /* Claim: Structure or union element.
720 Hopefully, I can ignore this. */
721 case N_ENTRY: /* Alternate entry point; can ignore. */
722 case N_MAIN: /* Can definitely ignore this. */
723 case N_CATCH: /* These are GNU C++ extensions */
724 case N_EHDECL: /* that can safely be ignored here. */
725 case N_LENG:
726 case N_BCOMM:
727 case N_ECOMM:
728 case N_ECOML:
729 case N_FNAME:
730 case N_SLINE:
731 case N_RSYM:
732 case N_PSYM:
733 case N_LBRAC:
734 case N_NSYMS: /* Ultrix 4.0: symbol count */
735 case N_DEFD: /* GNU Modula-2 */
9342ecb9 736
4c7c6bab 737 case N_OBJ: /* useless types from Solaris */
9342ecb9 738 case N_OPT:
4c7c6bab 739 case N_ENDM:
7e258d18
PB
740 /* These symbols aren't interesting; don't worry about them */
741
742 continue;
743
744 default:
7e258d18
PB
745 /* If we haven't found it yet, ignore it. It's probably some
746 new type we don't know about yet. */
51b80b00 747 complain (&unknown_symtype_complaint,
833e0d94 748 local_hex_string (CUR_SYMBOL_TYPE));
7e258d18
PB
749 continue;
750 }
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